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forsure, sounds like you have a pretty rowdy engine setup!

let us know if the holley takes care of your issue!

http://www.silveradoss.com/forums/topic/49683-idle-tuning-using-hptuners/

i used this page to help do my idle tune, read it over and see if its something you want to use

does it accept the tune when you flash it ? or does it time out or fail?

honestly i think id start by checking for vacuum leak, my car would idle fine one day , and another day drop in idle , i fought this issue for a solid couple months before i located a vacuum leak

UPDATE CAR IS RUNNING AGAIN: after lots of reading last night i stumbled on a post with symptoms alot like mine, apparently this is becoming a frequent issue, but i think mostly with the new MPVI2,...

just posted my own thread on a very similar subject, is everyone in this thread using the mpvi2 ? i had the exactly same thing happen on a 05 ctsv p59 ecm with mpvi1

ok thank you, i guess ill try the security relearn and see if it starts, if it does ill just have him buy a new ecm , oddly enough he called the caddy dealer today and they said they couldnt find a...

no after the little incident, anytime i tried to connect the laptop to the ecm it would throw that security fault, so i cleared the security fault and tried to jump the starter to see if it would...

hey five finger, ok so just plug in replacement ecm , and do a write entire? is there any options to try with the stock ecm?

-so just to kind of recap i did already plug in the spare ecm, the...

before i do a write entire on the new ecm, i need to do the security relearn tho correct ?

also im pretty sure hptuners was not able to connect at all to ecm, thats when it says protocol failed

hey james

what if i already took out the original ecm?

hello everyone,

this weekend 9/16/18 i encountered a issue i can not seem to find an answer for , forgive me if i've overlooked but can only research so much in a tight window

So, i offered to...

Oh yeah, it worked great for 2 weeks then all the sudden won't record , it's like the memory went bad

92996

What does that mean exactly , if you could break it down for a rookie... my module was working fine for two weeks and then just one random day it started throwing the error anytime I try to stand...

Thank you bill , I have been emailing back and forth with support for about 2 weeks , my only concern at the moment is I have not been instructed with any direction to move forward. I really need to...

I wish hptuners support was more user friendly , still without the ability to use my pro unit, sucks trying to have a laptop ride shot gun to dial in my car....

If I try to do stand alone data logging with my module , it will scan for about 1-5 mins and start flashing err, if I try to end the scan before the err occurs , it will not be saved when I go to...

i have to apologize, i just needed to right click on the eq commanded and change the units measured

i was able to get them working but i do not have the afr commanded ratio , is it going to cause a problem using it in lambda tuning ?

5fdp: right but i guess i don't know what channel I'm missing in order to make it work in my charts?

this is what i did to disable the MAF

i understand, but my command and error afr's are not working. not sure what I'm doing wrong, but do i need to have them set in the channels list before they will work in the graphs?